No, just because the article was under review did not mean that it could not be published. During the review process, the Baijiahao platform would review the article and decide whether the article could be published based on the review results. If the article passed the review, it could be published on the platform. However, if the article was returned during the review, it would need to be reviewed again until it passed the review before it could be published. Therefore, it is recommended to check the review process of the Baijiahao platform before publishing the article and wait patiently for the review results.